The Meter per Pixel (MPP) value is the resolution of your input data and it affects the rendering quality of your source.

Height and Imagery Sources

If you are combining a Height source with an Imagery source, you don’t have to add a meter per pixel value because DM reads the resolution value from the Imagery source. But what if you have height data but no images? You can still configure a Height source and combine it with a Color source instead. In that case you will have to add a value to the Color Source because the Map Dataset will always use the MPP value from the Imagery sources and not the Height Sources. The MPP value on your Color Source will affect the resolution and rendering quality of your height data.

Reality Mesh Models

If you are experiencing issues with the rendering quality of your mesh model, modifying the meter per pixel value can help.  By adjusting the value, you can control how the level of details are used and displayed.

The OCP viewer, while in a certain zoom level, will ask for data in a specific MPP, the closer you are, the better the quality of the model. If no MPP value has been added, DM will default to a value calculated from your input data. In some cases this can be may not result in the optimal MPP setting. For instance, you might experience that you have to zoom in closer than you would like to in order to render the data with the highest quality.

Note: the higher the value of MPP, the faster the high resolution tiles will render on a specific “zoom distance”, the smaller the value, the lower resolution of the tile. You will have to zoom in more to get see the model in better quality. For data with level of details, the MPP refers to the quality/resolution of the best level of detail.